Home / 90,110-124,341.22-49,821.36

Finding the Fourth Proportional to 90,110, 124,341.22 and 49,821.36

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Solution

The fourth proportional to 90,110, 124,341.22 and 49,821.36 is: 68,747.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,110 : 124,341.22 = 49,821.36 : x
  2. Step 2: Convert to fraction form
    90,110/124,341.22 = 49,821.36/x
  3. Step 3: Cross multiply
    90,110x = 124,341.22 × 49,821.36
  4. Step 4: Simplify right side
    90,110x = 6,194,848,684.46
  5. Step 5: Solve for x
    x = 6,194,848,684.46/90,110
  6. Step 6: Final answer
    x = 68,747.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.